欢迎来到天天文库
浏览记录
ID:35133903
大小:12.39 MB
页数:58页
时间:2019-03-19
《浅谈太佳高速老龙山隧道不良地质段施工技术研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、长安大学硕士学位论文太佳高速老龙山隧道不良地质段施工技术研究姓名:乔伟申请学位级别:硕士专业:岩土工程指导教师:杨晓华20100608摘要随着西部地区高等级公路的发展,就山岭隧道建设而言,隧道不良地质段施工问题日渐突出:大变形、塌方、突水突泥等隧道地质灾害时有发生。因此,在保证施工安全、降低工程造价、提高工作效率的前提下,如何有效地控制不良地质段施工是目前亟待解决的问题。本文将从隧道不良地质段地质灾害的防和治两个角度入手,依托在建实体工程—太佳高速公路老龙山隧道,结合隧址区的不良地质段的实际施工情况,研究了适合老龙山隧道的施工技术:(
2、1)对于不良地质段的施工,准确判断前方围岩的好坏情况是施工的前提。本文通过地质预报直接法和间接法方案比选,提出老龙山隧道综合超前预报方案,并通过不良地质段预报工程实例研究了TGP与地质雷达的适用条件及判读方法。(2)从不良地质段预加固措施和开挖工法的研究入手,通过隧道不良地质段预加固原理分析及目前不良地质段常用的预加固方法、开挖方式的比选,并结合老龙山隧道施工中遇到的围岩大变形和塌方灾害,提出适合老龙山隧道不良地质段的预加固措施及开挖方法。(3)通过现场监控量测对处治方案进行分析,对灾害处治效果进行评价。关键词:公路隧道施工灾害预防技
3、术灾害处治效果评价AbstractAlongwiththedevelopmentofhigh’classhighwayinwesternregions,thetunnelconstructionproblemsofunfavorablegeologicalsectionsareclimbingupintermsoftheconstructionofmountainoustunnel.Geologicaldisastersoftunnelsoccurfrequently,suchaslargedeformation,landslide,
4、watergushing,etc.Therefore,onthepremiseofensuringsafetyofconstruction,reducingthecostandimprovingworkefficiency,howtocontroltheconstructioneffectivelyisacriticalproblemtobesolved.Thispaperproceedsfromtheanglesofpreventionandtreatmentofgeologicalhazard.Relyingontheengine
5、eringconstructionentity—.LaolongMountaintunnelofTaiyuantoJiaxianfreeway,andcombining、析ththeactualsituationsoftheunfavorablegeologicaltunnel,thepaperanalysestheconstructiontechnologyoftheLaolongMountaintunnel.(1)Forthetunnelconstructionofunfavorablegeologicalsection,thea
6、ccuratejudgementofthesurroundingsaheadisthepremiseofconstruction.Basedonthecomparisonofdirectandindirectgeologicalforecastmethods,thecomprehensivepre-processingforecastmethodoftheLaolongMountaintunnelisproposedinthepresentstudy,andtheconditionandinterpretationoftheTGPan
7、dgeologicalradariselaboratedthroughtheengineeringexamplesofunfavorablegeologicalsectionforecast.(2)Fromtheangleofthepre-reinforcementmeasuresandexcavationmethodofunfavorablegeologicalsection,thearticleanalysesthepre-reinforcementprincipleandmethodofunfavorablegeological
8、sectiontunnels.Throughthecomparisonofexcavationmethods,thepaper,incombinationwiththelargedeformationandlandsli
此文档下载收益归作者所有